Home / 220,840.20-304,759.56-120,238.20

Finding the Fourth Proportional to 220,840.20, 304,759.56 and 120,238.20

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Solution

The fourth proportional to 220,840.20, 304,759.56 and 120,238.20 is: 165,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,840.20 : 304,759.56 = 120,238.20 : x
  2. Step 2: Convert to fraction form
    220,840.20/304,759.56 = 120,238.20/x
  3. Step 3: Cross multiply
    220,840.20x = 304,759.56 × 120,238.20
  4. Step 4: Simplify right side
    220,840.20x = 36,643,740,927.19
  5. Step 5: Solve for x
    x = 36,643,740,927.19/220,840.20
  6. Step 6: Final answer
    x = 165,928.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.